The locus of the centre of a circle which touches externally the circle `x^2 + y^2-6x-6y+14 = 0` and also touches Y-axis, is given by the equation (a) x2-6x-10y+14 = 0 (b) x2-10x-6y + 14 = 0 (c) yr_6x-10y+14-0 (d) y,2-10x-6y + 14 = 0